Adjustable connection eor bracelets and the like



Dec. 16, 1930. A. WITTMAYER 1,785,104

ADJUSTABLE CONNECTION FOR BRACELETS AND THE LIKE Filed July 15, 1929 awwentoz flsx/l/mls W/TTNA R UNITED STATES W20 of'the construction and Patented Dec. 16, 193) PATENTLOFFICE 1 ALEXANDER WITTMAYER, or BROOKLYN, New YORK JADJ'USTAIBLE CONNECTION FOB. BRACELETS AND THE LIKE Application filedJuly 15,

This invention relates to im'prove d connections adaptable for use with bracelets, wrist watch chains or straps, watch-chain fobs and T the lil-refto provide a reliable strong quick 5 opening and finely adjustable device of the above class.

An object. of the invention is to provide 7 a connection device wherein the component parts are of simple lnexpensive construction "10 and which may be readily assembled and taken apart when desired.

Prominentfeatures of the construction are 7 present in asemi-tubular female head'portion or member having springarms, a rockable rack member pivotedinsaid head'i a male 1 connecting bar or shank. member having means for engagingthe rack member to c'on stitute a lock. r I

I will now enter intoa'detailed description relative arrangement of the parts embraced in the present and pre ferred embodiment of my invention in order to impartga full, clear and exact understanding thereof. Ido not desire, however, to be understood as confining myselfito the said specific construction inasmuch as in the fu ture practice of the invention 'many refine- 'ments may be made in the commercial appliation of the device provided for the purpose *BOzset forth. 5

nected.

Fig. 2 is a longitudinal sectional elevation taken about on the line 2-5-2 of Fig. 3.

line 3 3 of '2. V

Fig. 4 is a detail perspective view of a catch'member employedg p ,Referring to the drawings in' detail, 10

' designates a head or female member, having "21 toofar. above ends maybe accomplished in aisimple Fig. 3 is across sectional elevation' on the 1929. Serial No. 378,346.

extended parallel side plates 11, by which said head may bec'onnected to an end of a bracelet, necklace, Wristwatch chain, or strap or the like. These plates may, if desired, bear ornamental designs or figures such as is shown at 12. I r l The head 10 is preferably of generally double barrel cross sectional formatiomsnch asat 13,'and is thickened and added thereto 7 at the top, as at 14:, this superposed part be- 6 ing formed with a longitudinal slot 15. This thickenedor superposed portion also is providedfwith horizontal-side and bottom slits 16, extending forwardly to the point 17, thus providing spring arms 18, the rear ends there of being beveled downwardly andforwardly,

as at 19, to overlap correspondingly, beveled shoulders 20 on a rocking catch member 21.

This catch member is a unitary structure and, is formed with a cross head 22, having aforwardlyextending tongue 23, provided with teeth 2% on its underside, said head alsohaving. a cross bore 25, to receive a pin 26, secured into side plates 11 on which pin it rocks be tween the side-plates 11, when pressure is exerted on a finger piece 27, on the rear of the head 22. Just back of this finger piece is a turned up end wall 28, in the main head 10, bridging the spacebetween the platesll,

which end wall. serves to close the rear end of thedouble barrels 13, and ,further serves 7 to act as a stop for the'finger when depressing said finger piece to" prevent tilting the catch In carrying out my invention, I provide a bar, shank or male member 29, whichv may be connectedfto the opposite end ofthe chain,

A strap or the like, attached to the'head lOand preferably corresponds in "cross sectional shapetothe inner walls of the double barrel 9o head 10 inwhich it is slidable. The inner end of this bar 29 has a tooth or shoulder 30,

which engages the teeth 24: of the catch member'21 to lock the parts.

.When first assembling the male and female members, the rear endof the member 29 carrying the tooth 30, is insertedjintothel member 10 and forced rearwardly'until the linterlocking' "teeth. 24 and 30 engage y after which a-lug 31 is turned down in the path of V forth.

the tooth 30, so that the shank member 29 cannot be withdrawn, thus forming a unit connection as described.

It will be obvious that the member 25 may be adjusted to engage any of the teeth 24 and when it is desired to disengage the teeth, the finger may be employed to depress the rear of the cross head22 and rock it on the pin 26, thus raising thetcothed tongue 23, against the action of the spring arms 18, which returns the tongue to the normalposition when the finger is removed from the finger piece 27 of cross head 22. In this manner the catch or connection device maybe adjusted from tooth to tooth in a very this manner within its fartherest limits.

What I claim as new, is A 1. A connection embodyinga head having projecting parallel'plates, an'open slot in its top and spring arms at the sides thereof, a shank member'havinga stop shoulder and slidable in said head, and a rockabl'erack member mounted between said plates having a portion e'Xtending into saidslot, other portions thereof engaging the spring arms, and teeth on said rack to engage the shoulder on said shank member to lock the parts.

2. A connection embodying a tubular head with an open slot inits top, and spring arms at the sides of said slot the ends of said arms being beveled, a shank member slidable in said'head and having a stop shoulder, and a rack membei rockable in said head and having beveled faces to engage the ends of said spring arms, and teeth on a portion ofsaid rack extending into said slot to engage the shoulder on said shank member to lock the parts.

3. A connection embodying a tubular head of general cross sectional double barrel form having a slot in its top and parallel spring arms, a shank member having a shoulder and slid able in said head and corresponding in cross section tothe tubular portion thereof, a rack member mounted to rock in said head and having a tongue extending into said slot and shoulders to engage the ends of the said spring arms; the said tongue being provided with teeth to engage the shoulder on the shank member, for the purpose set fortli 4;. A connection embodying a head having parallel spring arms, a shank having a lug and slidable in said head, a rack member pivoted in said head and having teeth to engagev the said lug, r shou'lders on said rack member, said shoulders being adapted to engage the said spring arms and said rack member also having a finger piece whereby it may be tllted on 1ts pivot pin, for the purpose set 5. In aconnection, a head, a shank having a; projection, and a rockable rack member on said head having shoulders and a tongue be tween them with teeth to engage said projection of the shank, said shank being slidable in said head, and means on the head engaging said shoulders for controlling the movement of said rack.

6. In a connection, a head, a shank having a projection, and a rockable rack member 011 said head having shoulders and a tongue between them with teeth to engage said projection of the shank, said shank being slidable in said head, means on the head'e'ngagi ng said shoulders for controlling the movement of said rack, and means forpreventing the entire withdrawal of the shank from said head.

7". In a connection, comprising a tubular female member having a slot in its top and twospring 'arms'with bevelled ends at the two sides thereof; a rockable memberpivoted in said female member, a portion of the same fitting into saidslot and other portions being engaged by the ends of said spring arms whereby normally to be pressed into said slot; a finger piece at the end of said rockable member whereby it may be lifted from said slot; a plurality of teeth at the inner surface of said rockable member; a male member for the connection slidable in said female member, and aprojection on said male member adapted to be engaged by said teeth to secure the parts together.

8, In a connection, comprising a tubular female member havingaslot in its top and two sprin arms with bevelled ends at the two sides thereof; a rockable'member pivoted in said female member, a portion of the same fitting into said slot and otherportions being engaged; by the ends of said spring arms whereby normally to be pressed" into said slot; a finger pieceat the end of said rockable member whereby it be lifted from said $1015, a plurality of teeth at the inner surface of said rockable member; a male member for the connection slidable in said female member, and a projection on said male member adapted to be engaged by said teeth to secure, the parts together, said female member having rearwardly extendinguplates, and. a pivot pin between said plates for said rockable member.

9. In a connection, comprising a tubular female member having a slot in its top and two spring arms with bevelled ends at the two sides thereof; a rockable member pivoted in said female membena portion of the same fitting into said slot and other portions being engaged by the ends of said spring arms whereby; normally to be pressed into said slot; a finger piece at the end of said rockable member whereby it may be lifted from said slot; a plurality of teeth at the inner surface of said rockable member; a male member for the connection slidable in said female member, and a projection on said' male memberadapted to be engaged by said teeth to secure the parts together, said female member having rearwardlfy extendingplates and, a pivot pin between said plates fbi said rockable member, and a transverse wall between said plates to enclose the parts.

10. In a connection, comprising a tubular female member having a slot in its top and two spring arms with bevelled ends at the two sides thereof; a rockable member pivoted in said female member, a portion of the same fitting into said slot and other portions being engaged by the ends of said spring arms whereby normallyto be pressed into said slot; a finger piece at the end of said rockable member whereby it may be lifted from said slot; aplurality of teeth at the inner surface of said rockable member; a male member for the connection slidable in said female member, and a projection on said male member adapted to be engaged by said teeth to secure the' parts together, said female member having a depending front end en gageable. by said projection on the male member to prevent the entire withdrawal of said male member. 7 11. In a connection, comprising a tubular female member having a slot in its top and two spring arms with bevelled ends at the two sides thereof; arockable member pivoted in said female member, a portion of the same fitting into said slot and other portions being engaged by the ends of said spring arms whereby normally to be pressed into said slot; a finger piece at the end of said rockable member whereby it may be lifted from said slot; a plurality of teeth at the inner surface of said. rockable member; a male member for the connection slidable in said female member, and a projection on said male member adapted to be engaged by said teeth to secure the parts together, said female member being in the shape of double tubes 40 andsaid male member having double shanks to slide in said tubes; a flat'top on said female member provided with the slot to receive said rockable member, the two sides of said flat top being partially separated from the material of the female member by slits to form the springs for retaining said rockable member.

Signed at New York, in the county of New York and State of New York, this 10th day of July, 1929.

ALEXANDER WITTMAYER. 

